Bogleheads was the source of most of my formative personal finance education (for ~14 years), and it’s relevant because the SWR discussions there are typically in the 2-4% range.

What do you file for this "income overseas," do you file SChedule C self employed on your personal 1040 tax returns ?

Have you started going to in-person real estate investing meetups yet? 

In tight inventory markets like Boston, I encourage clients to clearly define their purchasing criteria, start looking, and then be patient.Some of the best deals I have seen or experienced personally happened during unusual circumstances.

.: Hi, I have  four sfr properties that I rent out for my personal income as well as a business investment. 

Quote from @Taylor Dasch: I feel like theres more opportunity in equity growth, but I personally am in the Median income area - I like to see a little cash flow and have good tenants.

IMO, the person you want to look at is Jonathon Haveles with Land Riches Blueprint. 

Just make sure you account for Denver’s higher property taxes, insurance costs, and the ever changing landlord regulations when running your numbers.Feel free to ask more questions about the area or strategies—I’ve helped clients with similar goals and have personally done house hacks and short-term rentals around Boulder and Denver.

I personally think one night stays are not worth the risk.

There are definitely multiple options and some will allow for a set amount of personal transactions per year to waive commission splits.